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King, Roy W.; Williams, Kathryn R. – Journal of Chemical Education, 1989
Using fourier transformation methods in nuclear magnetic resonance has made possible increased sensitivity in chemical analysis. This article describes these methods as they relate to magnetization, the RF magnetic field, nuclear relaxation, the RF pulse, and free induction decay. (CW)
Descriptors: Chemistry, College Science, Higher Education, Instrumentation
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Janini, George M.; Katrib, Ali H. – Journal of Chemical Education, 1983
Proposes a simple experiment based on the procedure of Guggenheim and Smith for the determinatin of the dipole moments of two isomeric compounds in nonpolar solvents. Provides background information, laboratory procedures, sample data, results of least squares analysis and discussion of results. (JM)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
Peer reviewed Peer reviewed
Eaton, Bruce G., Ed. – American Journal of Physics, 1982
Presents a technique to produce samples for x-ray diffraction studies on the Tel-X-Ometer 80 x-ray apparatus from readily available crystalline powders and discusses observations of transverse modes of an optical resonator. (SK)
Descriptors: College Science, Higher Education, Laboratory Equipment, Laboratory Procedures
Peer reviewed Peer reviewed
Settle, Frank A. Jr., Ed. – Journal of Chemical Education, 1989
Using Fourier transformation methods in nuclear resonance has made possible increased sensitivity in chemical analysis. This article describes data acquisition, data processing, and the frequency spectrum as they relate to this technique. (CW)
Descriptors: Chemistry, College Science, Higher Education, Instrumentation
Peer reviewed Peer reviewed
Ahn, Myong-Ku – Journal of Chemical Education, 1989
Nuclear magnetic resonance and infrared are two spectroscopic methods that commonly use the Fourier transform technique. Discussed are the similarities and differences in the use of the Fourier transform in these two spectroscopic techniques. (CW)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Equipment
Peer reviewed Peer reviewed
Wink, Donald J. – Journal of Chemical Education, 1989
Discussed are the mechanisms of nuclear magnetic relaxation, and applications of relaxation times. The measurement of spin-lattice relaxations is reviewed. It is stressed that sophisticated techniques such as these are becoming more important to the working chemist. (CW)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Equipment
Peer reviewed Peer reviewed
Kurtz, David W.; Johnson, Richard P. – Journal of Chemical Education, 1989
Described is an experiment which illustrates valence isomerization, the trapping of a reactive intermediate and retrosynthetic analysis applied to the Diels-Alder reaction. Included is a background discussion, experimental procedures, and a discussion of the analysis. (CW)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures
Peer reviewed Peer reviewed
Rowland, Alex T. – Journal of Chemical Education, 1983
Describes an undergraduate organic chemistry experiment designed to illustrate the power of nuclear magnetic reasonance spectroscopy in a determination of the configurations at centers of chirality of various isomers of acyclic systems. Provides a background discussion and experimental procedure. (JM)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
Peer reviewed Peer reviewed
Glidewell, Christopher; And Others – Journal of Chemical Education, 1984
Background information, procedures, and typical results are provided for a three-part experiment involving reactions of potassium thiocynate (KNCS) with sulfuric acid. The experiment represents the final stage of structured work prior to students' research projects during their final year. (JM)
Descriptors: Acids, Chemical Analysis, Chemical Reactions, Chemistry
Peer reviewed Peer reviewed
Gilbert, George L. – Journal of Chemical Education, 1982
Two demonstrations are described: (1) a sunset effect using a gooseneck lamp and 20 sheets of paper and (2) the preparation and determination of structural features of dimethyl sulfoxide (DMSO) by infrared spectroscopy. (SK)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewed Peer reviewed
Hill, J. O.; Magee, R. J. – Journal of Chemical Education, 1988
Describes several experiments using the techniques of thermal analysis and thermometric titrimetry. Defines thermal analysis and several recent branches of the technique. Notes most of the experiments use simple equipment and standard laboratory techniques. (MVL)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
Peer reviewed Peer reviewed
Bruno, Thomas J. – Journal of Chemical Education, 1986
Discusses some aspects of electrodeposition and electroplating. Emphasizes the materials, techniques, and safety precautions necessary to make electrodeposition work reliably in the chemistry laboratory. Describes some problem-solving applications of this process. (TW)
Descriptors: Accident Prevention, Chemical Bonding, Chemical Industry, Chemical Reactions
Peer reviewed Peer reviewed
Cheatham, Steve – Journal of Chemical Education, 1989
Discusses the nature of a nuclear magnetic resonance (NMR) experiment, the techniques used, the types of structural and dynamic information obtained, and how one can view and refine structures using computer graphics techniques in combination with NMR data. Provides several spectra and a computer graphics image from B-form DNA. (MVL)
Descriptors: Biochemistry, Chemical Analysis, Chemical Bonding, Chemical Nomenclature